/* lab.uig.me - the only stylesheet. No JS. */

:root {
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #5d646d;
  --border: #e3e4e6;
  --accent: #0b6bcb;
  --ok: #1a7f37;
  --chip: #eef1f4;
  --code-bg: #f3f4f6;
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --surface: #181c21;
    --text: #e4e7eb;
    --muted: #9aa3ad;
    --border: #2b3139;
    --accent: #5aa9f5;
    --ok: #4cc26a;
    --chip: #232931;
    --code-bg: #1f242b;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }

/* header / footer */
.site-header { border-bottom: 1px solid var(--border); background: var(--surface); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 16px; }
.brand { font-weight: 700; color: var(--text); font-family: var(--mono); letter-spacing: -0.02em; }
.site-header nav { display: flex; gap: 20px; }
.site-header nav a { color: var(--muted); }
.site-header nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
.site-footer { border-top: 1px solid var(--border); margin-top: 64px; padding: 24px 0; color: var(--muted); font-size: 14px; }
.site-footer a { color: var(--muted); }

main.wrap { padding-top: 32px; }

h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 12px; letter-spacing: -0.01em; }
h2 { font-size: 1.3rem; margin: 40px 0 12px; }
h3 { font-size: 1.05rem; margin: 0 0 6px; }
.small-heading { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.lead, .intro p { color: var(--muted); max-width: 640px; }
.empty { color: var(--muted); font-style: italic; }

/* stats */
.stats { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 8px; }
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 18px; min-width: 150px; display: flex; flex-direction: column;
}
.stat .num { white-space: nowrap; font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .label { color: var(--muted); font-size: 14px; }

/* passed by category */
.by-category { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.by-category li {
  display: flex; align-items: center; gap: 8px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 999px; padding: 3px 6px 3px 14px; font-size: 15px;
}
.by-category a { color: var(--text); }
.by-category .count {
  background: var(--chip); border-radius: 999px; padding: 0 9px; color: var(--muted);
  font-size: 13px; font-variant-numeric: tabular-nums;
}

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; display: flex; flex-direction: column;
}
.card p { margin: 0 0 10px; color: var(--muted); font-size: 15px; }
.card .status { margin: auto 0 0; color: var(--ok); font-size: 14px; font-weight: 600; }
.tags { list-style: none; padding: 0; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 6px; }
.tags li { background: var(--chip); border-radius: 999px; padding: 1px 10px; font-size: 13px; color: var(--muted); }

/* lab page */
.lab-header .meta { color: var(--muted); font-size: 14px; margin: 0 0 6px; }
.lab-header .summary { font-size: 1.1rem; color: var(--muted); margin: 0 0 12px; }
.record {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  padding: 12px 18px; margin: 20px 0 8px;
}
.record dl { display: flex; flex-wrap: wrap; gap: 8px 28px; margin: 0; }
.record dt { font-size: 13px; color: var(--muted); }
.record dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.checks ul { list-style: none; padding: 0; }
.checks li { padding: 4px 0 4px 28px; position: relative; }
.checks li::before { content: "✓"; position: absolute; left: 4px; color: var(--ok); font-weight: 700; }
.checks .note { color: var(--muted); font-size: 14px; margin-top: -4px; }

/* rendered README */
.readme { overflow-wrap: break-word; }
.readme h2 { border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.readme code { font-family: var(--mono); font-size: 0.9em; background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; }
.readme pre { background: var(--code-bg); padding: 12px 14px; border-radius: var(--radius); overflow-x: auto; }
.readme pre code { background: none; padding: 0; }
.readme details {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 14px; margin: 16px 0;
  background: var(--surface);
}
.readme summary { cursor: pointer; font-weight: 600; }
.readme details[open] summary { margin-bottom: 4px; }
.readme img { max-width: 100%; height: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.readme table { border-collapse: collapse; display: block; overflow-x: auto; }
.readme th, .readme td { border: 1px solid var(--border); padding: 6px 10px; }
.readme img { max-width: 100%; }

/* timeline */
.timeline { list-style: none; padding: 0; margin: 24px 0; border-left: 2px solid var(--border); }
.timeline li { display: flex; flex-wrap: wrap; gap: 4px 16px; align-items: baseline; padding: 8px 0 8px 18px; position: relative; }
.timeline li::before {
  content: ""; position: absolute; left: -6px; top: 16px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--ok);
}
.timeline time { font-variant-numeric: tabular-nums; color: var(--muted); min-width: 92px; }
.timeline .count { color: var(--muted); font-size: 14px; }

@media (max-width: 520px) {
  h1 { font-size: 1.55rem; }
  .stat { flex: 1 1 140px; min-width: 0; padding: 12px 14px; }
  .stat .num { font-size: 1.25rem; }
}